1Department of Maxillofacial Biomedical Engineering, School of Dentistry, and Institute of Oral Biology, Kyung Hee University, Seoul 130-701, Republic of Korea,
2Department of Life and Nanopharmaceutical Sciences, Kyung Hee University, Seoul 130-701, Republic of Korea,
3Department of Dentistry, Graduate School, Kyung Hee University, Seoul 130-701, Republic of Korea,
4Department of Conservative Dentistry, School of Dentistry, Kyung Hee University, Seoul 130-701, Republic of Korea
1Department of Maxillofacial Biomedical Engineering, School of Dentistry, and Institute of Oral Biology, Kyung Hee University, Seoul 130-701, Republic of Korea,
2Department of Life and Nanopharmaceutical Sciences, Kyung Hee University, Seoul 130-701, Republic of Korea,
3Department of Dentistry, Graduate School, Kyung Hee University, Seoul 130-701, Republic of Korea,
4Department of Conservative Dentistry, School of Dentistry, Kyung Hee University, Seoul 130-701, Republic of Korea
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Corresponding author:
Jin-Yong Lee , Tel: +82-2-960-2838,
Received: 3 September 2014 • Revised: 9 April 2015 • Accepted: 13 April 2015